Part 6/9:
Researchers are also exploring qubits at the nuclear level. The nucleus of the phosphorus atom, although significantly weaker in spin (about 2,000 times less than that of the electron), can still serve as a qubit. The write operation relies on electromagnetic radiation needing longer wavelengths and pulse durations to trigger a spin flip in the nuclear state.
Measuring the Spin of Nuclei
Reading the nuclear spin involves the electron's reaction to two distinct frequencies, determined by the nucleus's orientation. This means that the nucleus can control which frequency the electron "tunes into," effectively functioning as a selector for the electron's response.